GitLab Inc.

Backend Engineer (Ruby), AI Engineering: Duo Agent Platform Tools

GitLab Inc.$120K — $150K *
US-AnywhereRemote in Canada
Enterprise Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years experience with Ruby on Rails, including APIs and data models.
  • Ability to navigate a mature codebase across the stack; familiarity with Python and Vue is advantageous.
  • Skilled in designing REST and GraphQL APIs, emphasizing scalability and maintainability.
  • Practical experience with AI tooling and developing AI-integrated backend features is a plus.
  • Proficient in SQL and experienced with relational databases like PostgreSQL.
  • Eager to learn, collaborate asynchronously, and adapt insights from related fields.
  • Strong communication skills for creating technical documentation and collaborating in a remote setting.

Responsibilities

  • Develop and maintain secure, well-tested features for Agentic Tools within GitLab's backend.
  • Collaborate with cross-functional teams to refine product requirements and execute enhancements.
  • Design and review backend logic for REST and GraphQL APIs, ensuring reliability and scalability.
  • Enhance automated testing and improve quality standards through various testing frameworks.
  • Share engineering patterns and insights to promote responsible AI integration within the team.
  • Participate in on-call support, troubleshoot issues, and improve system observability.

Benefits

  • Health, financial, and well-being support programs.
  • Flexible Paid Time Off policy.
  • Access to Team Member Resource Groups.
  • Equity Compensation and Employee Stock Purchase Plan offerings.
  • A dedicated Growth and Development Fund.
  • Paid Parental Leave.
Full Job Description
An overview of this role

As an Intermediate Backend Engineer on the GitLab Agent Tools team, you'll go beyond using AI tools and help define how we design, build systems that allow AI agents to interact with the full software delivery lifecycle, way beyond pure code creation. This encompasses GitLab's MCP server as well as future technologies that are aimed at providing AI agents ways to interact with GitLab.

In this role you'll contribute to the development of complex features and help establish architectural patterns for how GitLab exposes its rich functionality to AI agents. You'll collaborate closely with engineers across the Agent Foundations stage and adjacent teams within AI engineering. This is a high-visibility area of the product at the intersection of GitLab's core platform and its AI strategy.

What you'll do
  • Develop, ship, and maintain features and improvements for Agentic Tools across the GitLab monolith backend in a secure, well-tested, and performant way.
  • Collaborate with Product Management, UX, frontend, backend, and AI specialists to refine requirements and deliver high-quality, iterative product enhancements.
  • Design, implement, and review GraphQL, REST APIs and related backend logic, ensuring reliability, scalability, and clear contracts with frontend clients.
  • Improve and extend automated testing, including RSpec and other frameworks, to strengthen quality, reliability, and developer feedback loops.
  • Share standards, patterns, and learnings with other engineers, raising the bar for responsible AI integration and evidence-driven engineering across the team.
  • Participate in Tier 2 on-call rotations to troubleshoot production issues, contribute to root cause analysis, and enhance observability and resiliency
What you'll bring
  • Experience building and maintaining production applications with Ruby on Rails, including work with background jobs, APIs, and data models.
  • Comfortable working across the stack in a mature codebase. Familiarity with Python backends and/or Vue frontends a plus.
  • Proficiency in designing or extending REST and/or GraphQL APIs with attention to scalability, maintainability, and backward compatibility.
  • Strong practical experience working with AI tooling on a daily basis. Experience designing and shipping AI-powered backend features and integrations is a plus
  • SQL skills and familiarity with relational databases such as PostgreSQL, including writing efficient queries and understanding data modeling.
  • Openness to learning, collaborating in an async-first, distributed team, and applying transferable skills from related technologies or domains.
  • Clear written and verbal communication skills, including writing technical proposals and documentation, and collaborating effectively in a remote, asynchronous, cross-functional environment.
About the team

Agent Tools is a new functional team within the Agent Execution group. The team itself will initially consist of three engineers across AMER and EMEA timezones. The whole Agent Execution group consists of 8+ engineers. Beyond the Agent Tools team, Agent Execution consists of further teams focussed on agent observability and executing agents on GitLab's runners. We're partnering with teams both within the AI space as well as all over GitLab to ensure that the Duo Agent Platform can become the backbone of many AI features at GitLab.

How GitLab Supports Full-Time Employees
  • Benefits to support your health, finances, and well-being
  • Flexible Paid Time Off
  • Team Member Resource Groups
  • Equity Compensation & Employee Stock Purchase Plan
  • Growth and Development Fund
  • Parental Leave

Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. Additionally, studies have shown that people from underrepresented groups are less likely to apply to a job unless they meet every single qualification. If you're excited about this role, please apply and allow our recruiters to assess your application.

Country Hiring Guidelines: GitLab hires new team members in countries around the world. All of our roles are remote, however some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.

Privacy Policy: Please review our Recruitment Privacy Policy. Your privacy is important to us.

About GitLab Inc.

GitLab Inc. is a web-based Git repository manager that provides source code management, continuous integration and deployment, and other software development-related tools. GitLab Inc. was founded in 2011 by Dmitriy Zaporozhets and Valery Sizov. The company has more than 1,400 employees and more than 100,000 customers. GitLab is a single application for the entire software development lifecycle. From project planning and source code management to CI/CD, monitoring, and security. GitLab helps teams accelerate software delivery and reduce the cycle time to bring ideas to market. GitLab is a remote-first company, with team members located in more than 65 countries.
Learn more about GitLab Inc.
Size
1,400 employees
Market Cap
$6.5 billion
Industry
Founded
2014
NASDAQ

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